Function getScrollParent

packages/react-aria/src/utils/getScrollParent.ts:15–26

(node: Element, checkForOverflow?: boolean)

import {isScrollable} from './isScrollable';

export function getScrollParent(node: Element, checkForOverflow?: boolean): Element {
  let scrollableNode: Element | null = node;
  if (isScrollable(scrollableNode, checkForOverflow)) {
    scrollableNode = scrollableNode.parentElement;
  }

  while (scrollableNode && !isScrollable(scrollableNode, checkForOverflow)) {
    scrollableNode = scrollableNode.parentElement;
  }

  return scrollableNode || document.scrollingElement || document.documentElement;
}